基于全滤色片匹配方法的滤色片漫入射光谱透过率评价  

Diffuse Incident Spectral Transmittance Evaluation of Filter Based on Full-color Filter Match

作　　者：袁琨[1] 严惠民[1] 王聪 

机构地区：[1]浙江大学国家光学仪器工程技术研究中心,杭州310027 [2]深圳汉谱光彩科技有限公司,广东深圳518000

出　　处：《光子学报》2013年第9期1097-1101,共5页Acta Photonica Sinica

基　　金：国家科技支撑计划课题(No.2011BAF06B02)资助

摘　　要：为了获得特定的探测器光谱响应,可以采用全滤色片法对滤色片进行精确匹配.在匹配计算时,通常使用滤色片的垂直光谱透过率作为计算依据;而实际应用中斜入射的光线会导致匹配计算结果和测试结果不一致.本文在光线漫入射条件下对圆柱形状滤色片的漫入射光谱透过率计算方法进行了分析,提出了一种由滤色片垂直入射光谱透过率计算滤色片漫入射光谱透过率的修正模型.设计了双积分球测量装置对滤色片的漫入射透过率进行检测.在该装置下检测不同滤色片的漫入射光谱透过率,并与修正模型计算结果进行对比验证.实验结果表明,修正模型可以在较小误差范围内由滤色片的垂直入射光谱透过率计算其漫入射光谱透过率,应用于全滤色片匹配可以显著提高匹配结果和实际测量结果的一致性.In order to realize the specific spectral response of the detector, full-color filter method can be used to calculate the match plan of color filter. During the calulation, normal spectral transmittance of the filter often be employed as the calculation basis. In many practical applications, obliquely incident light will lead the disagreement between calculated result and the actual result. In this paper, the caculation method of diffuse incident spectral transmittance about the cylindrical color filter is analyzed; a correcting model which can derive the diffuse incident spectral transmittance from normally incident spectral transmittance is proposed; a experiment system is designed for diffuse incident spectral transmittance measurment based on double integrating sphere. A set of experiments are employed to evaluate performance of the correcting model. The measurement results show that the correcting model can effectivlly derive the diffuse incident spectral transmittance from normally incident spectral transmittance with obviously lower match error. The agreement between actual measurement result and caculated result is observably improved by applying the correcting model to full-color filter method.

关 键 词：光学测量 漫入射透过率 算法修正 双积分球测量透过率 

分 类 号：O438.2[机械工程—光学工程]